Fireproof metal window.



No. 743,088. W PATENT-ED Nov. 3, 190s. J. A. KNISELY @E W. J. KLEMM. PIRBPROUP METAL WINDOW,

APPLICATION FILED PEB. l2, 1903. l

2 SHEETS-SHEET 2.

N0 MODEL.

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NITED STATES Patented November 3, 1903.

PATENT OFFICE.

JOHN A. KNISELY AND WILLIAM J. KLEMM, OF CHICAGO, ILLINOIS; SAID Y KLEMM ASSIGNOR TO SAID KNISELY.

FIREPROOF METAL WINDOW.

SPECIFICATION forming part of Letters Patent No. 743,088, dated November 3, 1903. Application iiled February l2, 1903. Serial No. 143,156. (No model.)

To @ZZ whom it. may concern:

Be it known that we, JOHN A. KNISELY and WILLIAM J. KLEMM, citizens ot' the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Fireproof Metal Windows, of which the following is a specification.

Our invention in this instance relates to improvements in the construction of reproof metal window frames and sash of that type in which the parts or members are-in hollow or box-like forms built up of sheetmetal plates or strips of copper or galvanized iron pressed into suitable shapes to produce the sills, stiles, heads, and rails which are secured together by interlocking iianges, rivets, and solder and arranged to produce more or less weather-tight and dust-proof windows.

The particular improvements which we wish to embody in this application have reference to the formation of the sash and cooperating frame, the relative arrangement of said parts in both stationary and swinging types of windows, and to the mannerof securing the glass in the sash.

The especial objects of `our improvements are economy in construction both as to material and labor, the avoidance of the use of solder to produce tight joints which willv be dust and weather proof and to give a neat and smooth finish by making the joints `without external or visible seams, to permit the partsto be made my machinery, so that they may be quickly assembled with but little hand labor, and to effect tight joints at the sides, the top, and bottom of the swinging sash when it is closed against its frame.

Subordinate objects and advantages resulting from improved methods of construction will clearly appear from the details hereinafter set forth.

In the accompanying drawings, which form a part of this application, we have shown our improvements in preferred form in the following views.

Figure l is a vertical section taken near the center line of a combination-window embodying our invention. Fig. 2 is a vertical section, on an enlarged scale, takenthrough a window-frame sill and headand the top and bottom rails of a swinging sash. Fig. 3 is a transverse section through one stile and the mullion'of the swinging sash and one side or jamb of the frame at a point above the pivot-hinge. Fig. 4 is a view similar to Fig. 3, but taken at a point below the pivothinge. Fig. 5 is a cross-section through one stile and one side of the frame or jamb of the stationary portion of the window. Fig. 6 is a fragmentary detail in perspective of the body portion of the sash-stile. Fig. 7 is a detail in perspective of the overhanging or double flange which is attached to lthe stile of the swinging sash and extends from the pivot to the top of the sash. Fig. 8 is a detail in perspective of the straight flange or tongue which forms a part of the jamb and extends from the pivot-point to the head of the frame, and Fig. 9 is a detail showing a fragment of the jamb alone.

For convenience we will describe, first, the construction of the window-frame, then the sash, and, lastly, the parts as assembled and cooperating to form a complete window.

By the term combination-window we mean thatform in which a stationary or lixed sash occupies the lower half, and a horizontally-swinging sash the upper half, of the frame.

The frame for a combination-window is built up of a sill A, jambs F, center crossrail B, and head or lintel C, and the sill and head are joined to the jambs in any suitable and well-known manner. In all of said parts the sheet metal is bent longitudinally to provide in cross-section the hollow or box-like forms common to such constructions, and same will not be particularly referred to in the speciiic description of said parts hereinafter given. When the entire frame is occupied by a swinging sash alone, the rail B becomes the sill of the frame. The jambs F are made up of two strips or plates of sheet metal, which are longitudinally bent to produce the rectangular (in cross-section) forms shown in Figs. 5 and 9, and the respective edges of these strips are bent to form outwardly-turned flanges f and inwardly-turned flanges f5, the former being adapted to receive other anges on parts to be described and the latter to receive any suitable closure ICO for the rear side of the frame, which forms no part of this invention and is therefore not shown. As these fianges extend throughout the length of the jambs, they run from sill to lintel or head of the frame.

The sill A is formed from a single strip of metal bent longitudinally to provide a groove or socket d to receive the lower edge of the glass G and bent upon itself to form a vertical rib a2, which bears against the inner edge of the glass, holds it securely along the bottom, and serves to exclude dirt, &:c.

The rail B, which serves as a sill for the swinging sash and as a head for the fixed sash, is constructed from a single strip of' metal bent to form an inclined meeting face b2 and a shoulder b3 on its weather side and doubled upon itself to form the iiange b', between which and the face b2 a channel h6 is provided. In this channel or recess aweatherstrip b5 may be secured in any preferred manner to assist in effecting a specially tight closure with the swinging sash, as indicated in Fig. 2. In the under side of the rail an opening b4 is left between the edges of the strip, into which the upper edge of the glass of the permanent sash is'inserted and which permits the glass to be pushed upwardly, so as to clear the rib or flange d2 along the sill when the glass is being placed in position in the` sash.

The head or lintel C is formed from asingle piece or strip of' metal bent tothe form shown in cross-section in Fig. 2, and along the rear lower corner the metal is doubled upon itself and then bent to forman inwardly-turned hori- Zontal flange c', between which and the lower inclined face c4 is a longitudinal recess or socket c5, which is adapted to receive a portion of the swinging sash when the latter is closed, as will be hereinafter described. In this recess a weather-strip c2 of suitable material may be placed it' a specially tight window 'is desired. The lower side of thelintel is also bent longitudinally to form a vertical shoulder c6, against which a portion of the sash strikes and rests when the latter is closed.

. The stationary sash is made up of the sill A, rail B, and two stiles H, between which extends the usual mullion M to receive and hold the inner edges of the panes of glass, it being presupposed that two panes are used to the sash. The stiles are each formed from a single strip of metal bent to provide the groove for the pane of glass G and having its edges bent inwardly, as at h', to form the flanges, which are adapted to interlock with the flanges f on the jarnbs. These stiles are placed in position in the frame by sliding the flanges h' into the anges j" from above before the rail B is fixed in its position, and the interlocked flanges are then pressed or harnmered to make them fit tight, as indicated in Fig. 5. The mullion M forms no part of this invention.

The swinging sash is composed of a top rail D, bottom rail E, and stiles J K, with the mullion M, all of which are joined together in any suitable manner. The top rail is formed from a single strip of metal bent longitudinally to form the usual socket d for the glass and doubled upon itself to form along its upper rear corner the interlocking flanges d3, which when the sash is closed project into the recess c5 of the lintel and contact with the weather-strip c2 therein located, or, if no weather-strip be used, against the rear wall of such recess. Said strip is also doubled upon itself and the two thicknesses bent to form the upwardly-extending vertical flange d4, which parallels and strikes against the shoulder c6 of the lintel when the sash is closed. The socket d is made sufficiently deep to permit the pane of glass to be pushed upwardly therein, so as to clear the walls of the socket in the upper side of the rail E, when it may drop into said socket. To prevent the glass lfrom being pushed up out of the lower socket after the window is finished, we place over the upper edge of the glass before inserting it in the socket d several small clips of bendable metal, as d2, and when the pane is in place bend up the exposed ends of the clips, as shown in Fig. 2, and, if desired, these ends may be soldered to the portions of the rail, which they engage.

The lower rail E is composed of a single strip of metal, which is bent or doubled upon itself to form the inwardly-extending flange or tongue e2, which projects into the recess b6 of the frame-rail B and strikes either against the rear wall of said recess or against the weather-strip b5, secured to such wall, as indicated in Fig. 2. The bottom of the rail E inclines downwardly toward the weather side of' the sash, as at e3, thus lying parallel with the upper face of the rail B, and the edges of the strip are bent to form the interlocked vertical iian ge e', which strikes against and lies'parallel with the shoulder b3 of the said rail B when the sash is closed.

From the aforegoing description of the top and bottom rails and of the parts B and C of' the frame it will be seen that each of said rails has three points of contact with the adjacent parts of the lintel and sill or rail B, at one of which a weather-strip may be applied, if desired. It should also be noticed here that the coacting flanges and recess-walls are integrally formed with their respective parts of frame or sash.

The portion of the swinging sash-Stiles below the pivot-hinge point we have designated as J and the. part above such point as Kin order to clearly distinguish them apart in the description, though it should be understood that they are continuous and integral structures in the main. The part .I is formed by bending the metal strip longitudinally to provide the usual socket for the glass, and its edges are respectively bent to form (in crosssection) a vertical ange L7'5 and a horizontal flange 3'4. A separate strip of metal is bent upon itself to form a tonguej, and its edges IIO III

mense are doubled to form flanges j2j3, which are adapted to receive `the flanges c7'5 j, respectively, of the stile-strip, thus securing the tongue to the stile, so that it extends inwardly and at right angles with the face of the latter. When the sash is closed, this tongue projects into the recess between the walls of the over hanging flange f6, the latter forming a meeting-strip for said tongue. The flange f6 is formed by bendingja strip of metal longitudinally upon itself and then bending the doubled metal upon itself to the form shown in Fig. 4, and the edges of the strip are bent at right angles to provide the flaugesf3f4, which interlock with the corresponding flanges f' of the jamb F, A bove the pivotal point, which is the location of the pin of the hinge M', the stile K is made in the same manner as it is below said point; but in lieu of the tonguej it is tted with the double flange la', which isof the same form as the flange f6 and extends inwardly from the face of the stile. This flange Zc' is formed from the same strip that makes the tonguej', the metal being cut sufficiently wide to allow for the eXtra material required to produce such form, and the edges are bent to produce the flanges k2 7c3, which are continuations of the flanges 7a2 k3 of the tongue-strip and have the same function of interlocking with the flan ges 7a4 .1.55 of the stile, the latter also corresponding with the flanges j* e7'5 of the stile-section J.

Above the pivotal point of the sash the jambs are supplied with a tonguefwhich is formed in substantially the same manner as the tongue j on the sash-stile andA projects between the walls of the double flange lo when the sash is closed. The edgesof' the tongue-strip are bent upon themselves to form the flanges fff, which interlock with the anges f along the edges of the adjacent portion of the jambs, thus securing the tongue to the latter in the same manner that the double flange]c6 is secured to the jamb below the pivot-point.

From the construction above set forth it will be seen that above the hinge-pivot the vided with tongues j', which project into and are overhung by the double flanges f6 along the corresponding portions of' the jambs when the window-sash is closed against the frame. It will also be apparent that as the ends of these tongues and flanges contact with each other or with some portion of the stiles or jambs at two points throughout their length an effective provision ismade for the exclusion of the elements. The construction set forth permits the stiles and jambs to be pressed into their respective shapes by suitable dies. and presses and the tongues and double flangesto be formed in the same manner and that when said parts are assembled it is only necessary to slide their coperati ng or interlocking flanges together from the ends of the parts, and the operation is completed by pressing the interlocked flanges tightly together.

In Fig. 1 we have shown our improvements in a complete window embodying a lock or latch L, a pivot-hinge M', and a latch-tripping device N; but these form no part of the invention embraced in this application and are therefore not particularly described herein.

What we do claim, and desire to obtain by Letters Patent in this connection, is-

l. In a metalwindow, aframe-jamb formed from strips of sheet metal having their edges bent to form flanges f,and a sash-stile formed from a single strip of metal bent to form a socket for the glass, and having its edges bent to provide flanges adapted to interlock with the flanges on the jamb.

2. In a sheet-metal window, a frame-jamb formed from two strips of metal having their edges bent to form flanges f', a third strip bent to form a tongue extending parallel with the face of the jamb and having its edges bent to form flanges adapted to interlock with the flanges on the jamb.

3. In a sheet-metal Window, a frame-jamb yformed from two strips of metal having their edges bent to form flanges f', a third strip bent to form a double flange extending parallel to the face of the jamb, the edges of said strip adapted to interlock with the edges of the jamb.

4. In a sheet-metal window, a frame-jamb composed of two strips of metal having their edges bent to form flanges 7"',and a third strip of metall bent upon itself to form for a portion of its length, a double flange f6, and having its edges adapted to interlock with the edges of the jamb.

5. In a sheet-metal window, a frame-jamb composed of two strips of metal having their edges bent to form ilangesf', and a third strip bent upon itself to form, for a portion of its length, a tongue f2, and for the rest of its length, a double flange f6, and having its edges bent to provide flanges adapted to interlock with like flanges on the jambs, in

combination with a sash-stile composed of a single strip of metal having inturned flanges along its edges, and provided with a tongue for a portion of its length, and with a double flange for the rest of its length, said tongue and double flange adapted to coperate with like portions on the jamb in the manner described. Y

6. In a metal window, a frame having suitable jambs, and a head or lintel composed of a single strip of metal bent to form a flange c and a shoulder c6.-

7. In a metal window, a frame having suitable jambs, and a rail composed of a single strip of metal bent to form a flange b and a shoulder b3.

8. In a metal window,a frame provided with a lintel composed of a single strip of metal bent to form a flange c' and a shoulder c,

IIO

also provided with a sill composed of a single strip of metal bent to form a socket for the glass and to form a retaining-rib a2, in combination with a rail composed of a single strip of metal bent to form a flange b anda shoulder bs.

9. In a metal window, a swinging sash having its Stiles each constructed from a strip of metal bent to form a socket for the glass and having its edges bent inwardly to form flanges, and a supplemental strip bent upon itself to form a tongue j and a double flange k', and having its edges adapted to interlock with the flanges on the stile proper.

10. In a metal window,a swinging sash having its top rail constructed from a strip of metal bent to form the glass-socket d,and also bent upon itself to form the flanges d3 and d4.

1l. In a metal window,a swinging sash cornposed of a top rail constructed from a strip of metal bent to form a socket for the glass,

and bent upon itself to form the flanges d3, d4, of a bottom rail constructed from a strip of metal bent to provide a socket for the glass, and bent upon itself to form flanges e', e2, and of stiles each constructed from astrip of metal bent to provide a socket for the glass, and having its edges bent inwardly to form flanges, and a supplemental strip of metal bent longitudinally for a portion of its length to form the double ange lo', and for the rest of its length to form the tongue j', the edges of said strip adapted to interlock with the anges on the edges of the stile.

In testimony whereof we afx our signatures in vpresence of two witnesses.

JOI-IN A. KNISELY. WILLIAM J. KLEMM.

Witnesses:

E. T. KNISELY, F. BENJAMIN. Y 

